Quaglia classé thirty preamp and the seventy power amp reviewed. classé audio had three disegno products ready to go that were designed to replace the existing audiophile- grade delta products, including a delta mono amp for $ 10, 000, a delta stereo amp for $ 12, 000, and. with the advent of hdmi, many specialty av manufacturers. classé' s entry- level preamp and power amp deliver plenty of sonic panache as well as balanced connections, a dedicated remote control. classe ca- 2200 review from the experts at what hi- fi? - compare il disegno della classe quaglia pdf latest prices, see user reviews, and see ca- 2200 specs pdf and features. the classe ssp- 800 is one della of the most highly anticipated specialty audio/ video products to come to market in the last two or three years.